侦查

侦查	zhēn chá	to detect / to investigate
侦	zhēn	to scout / to spy / to detect
侦	zhēn	old variant of 侦
查	Zhā	surname Zha
查	chá	to research / to check / to investigate / to examine / to refer to / to look up (e.g. a word in a dictionary)
查	zhā	variant of 楂